loran


lo·ran

noun \ˈlr-ˌan\

Definition of LORAN

:  a system of long-range navigation in which pulsed signals sent out by two pairs of radio stations are used to determine the location of a ship or airplane

Origin of LORAN

long-range navigation
First Known Use: 1932

loran

noun    (Concise Encyclopedia)

A land-based system of radio navigation in common use over the continental United States and in its coastal waters. It was developed during World War II for the U.S. military. A civilian version, Loran-C, was developed in the 1950s. Loran-C can be used to determine position within about 30 ft (10 m) by comparing signals from multiple stations. Loran-like systems operate in many coastal waters around the world. However, the availability of the global positioning system (GPS), with a typical accuracy of 3 ft (1 m), has begun to relegate loran to backup status.

Variants of LORAN

loran abbreviation of long-range navigation

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